Another fun one: you can encode accented characters in two different ways: as a character plus its accent, or as a dedicated Unicode character. Software and ope

Another fun one: you can encode accented characters in two different ways: as a character plus its accent, or as a dedicated Unicode character. Software and operating systems can have their own standard for this. I learned it the hard way with my static site generator and the pages of my website that use Umlauts. It introduced subtle problems where Syncthing would replace one standard with another, and nginx would suddenly 404 on URLs that looked fine to me.